Do I use a website to download songs off of YouTube or Spotify?
Where should I store the music? I haven't any clue about self-hosting. I'm running GrapheneOS, is it enough to save the songs in Files and play in an app like Auxio? Maybe sync with SyncThing?
What's the best way to compress mp3 files but still retain the quality (even possible)?
Could really use some help as I'm very inexperienced. :)
I personally look up torrent files for either FLACs (lossless quality, with very large files) or 320kbps MP3s (smaller files with no noticable difference in sound quality imo) and then after making sure they have the right metadata (Title, Album, Artist) (using a tool like Tagger) I upload them onto my Navidrome server, which I connect to using Ultrasonic. If I didn't selfhost I'd probably just put the tagged files on my phone and play them with basically any music player.